An occluder intervention delivery device
By incorporating a connector and an exhaust valve into the occluder delivery device, the problems of inconvenient connection between the loading sheath and the delivery sheath, as well as poor air venting, were solved. This enabled efficient insertion of the occluder and cleaning of the delivery sheath, improving the safety and efficiency of the procedure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE 969TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
- Filing Date
- 2025-04-15
- Publication Date
- 2026-06-16
AI Technical Summary
In existing interventional delivery devices for occluders, the connection between the loading sheath and the delivery sheath is inconvenient, and air is easily generated during the guidewire withdrawal process of the delivery sheath, which affects the efficiency and safety of the operation.
A connecting plug is fixedly installed at one end of the loading sheath, and an insertion hole is opened at one end of the connecting sleeve to facilitate the insertion of the plug; an exhaust valve and an elastic rubber plug are installed at one end of the exhaust main pipe to achieve air discharge and pipe cleaning.
It improves the efficiency of occluder insertion, ensures smooth air expulsion from the delivery sheath, reduces the risk of air leakage, and enhances the safety and efficiency of the procedure.
Smart Images

Figure CN224357638U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveying device technology, and in particular to a sealing device-intervention conveying device. Background Technology
[0002] Occluders, as implantable devices used in interventional therapy, are widely used clinically to treat congenital heart diseases such as atrial septal defects, ventricular septal defects, and patent ductus arteriosus. The procedure involves inserting a small catheter through an 8-10 mm incision in the groin, and then accurately placing the occluder into the defect or abnormal passage within the heart or blood vessel via the right inguinal artery or vein to block it. This method of interventional treatment for congenital heart disease is characterized by the absence of surgical incisions, thus not affecting the child's physical and mental development. The entire procedure takes approximately one hour. Patients can walk the day after surgery and are discharged after one day of observation. The treatment effect is good. One month after implantation, the body's own endothelial cells cover the surface of the occluder, and after three months, the endothelial cells completely embed the occluder, preventing its dislodgement.
[0003] However, the loading sheath is relatively soft at one end, making it inconvenient to connect the loading sheath to the delivery sheath. Furthermore, air is generated in the delivery sheath during the withdrawal of the guidewire and inner core after the delivery sheath and inner core have entered the designated position of the patient with the ultra-hard guidewire, which is also inconvenient. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, this utility model provides an interventional delivery device for an occluder. By fixing a connecting plug at one end of the loading sheath, the occluder can be easily installed inside the loading sheath. By opening an insertion hole at one end of the connecting sleeve, medical personnel can quickly insert one end of the connecting plug into the insertion hole and then push the occluder installed at one end of the loading steel cable into the connecting sleeve. By installing an exhaust valve at one end of the exhaust pipe, medical personnel can easily expel the air inside the delivery sheath. By setting an elastic rubber plug at one end of the exhaust pipe, medical personnel can easily inject cleaning fluid into the inside of the exhaust pipe to clean the delivery sheath and the loading sheath.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a delivery device for an occluder, comprising a delivery sheath body and a loading cable. A connecting sleeve is fixedly installed at one end of the delivery sheath body. An insertion hole is formed on the surface of the end of the connecting sleeve away from the delivery sheath body. A hemostatic ring is fixedly installed inside the insertion hole. A loading sheath is installed inside the insertion hole. A connecting plug is fixedly installed at one end of the loading sheath. One end of the connecting plug is inserted into the insertion hole. A double-ended connecting tube is fixedly installed at the other end of the loading sheath. A loading handle is sleeved on the surface of the other end of the double-ended connecting tube. A conical rubber ring is fixedly installed at the other end of the loading handle. One end of the loading steel cable passes through the conical rubber ring, the loading handle, the double-ended connecting pipe, the loading sheath, and the connecting plug, extending to the inside of the connecting sleeve. An exhaust main pipe is fixedly installed on one side surface of the connecting sleeve and the loading handle. The two exhaust main pipes are respectively connected to the connecting sleeve and the loading handle. An elastic rubber plug is fixedly installed at one end of the exhaust main pipe. An exhaust branch pipe is installed on one side surface of the exhaust main pipe. A filter exhaust head is fixedly installed at one end of the exhaust branch pipe. An exhaust valve is installed on the surface of the exhaust main pipe near the exhaust branch pipe.
[0006] As a preferred technical solution of this utility model, the exhaust valve installed on one end surface of the exhaust pipe is composed of a three-way sleeve, a threaded adjusting rod, an inner threaded sleeve, a cylinder, and a T-shaped rotating rod. The two sides of the three-way sleeve are symmetrically provided with round holes. The inner threaded sleeve and the cylinder are respectively fixedly provided on the outer walls of the two sides of the three-way sleeve near the round holes. The threaded adjusting rod is installed on the inner side of the inner threaded sleeve. The cylinder has a through hole on its surface. The inner wall of the through hole has an L-shaped groove. The T-shaped rotating rod is installed on the inner side of the L-shaped groove. A locking block is fixedly provided on the outer surface of the center of the T-shaped rotating rod. The locking block is located inside the L-shaped groove.
[0007] As a preferred embodiment of this utility model, an arc-shaped clamping block is fixedly provided on one end surface of the threaded adjusting rod, a grooved clamping block is fixedly provided on one end of the T-shaped rotating rod, and the exhaust branch pipe is located between the arc-shaped clamping block and the grooved clamping block.
[0008] As a preferred embodiment of this utility model, the outer surface of the connector plug is provided with uniform anti-slip grooves, and the surfaces of the connector sleeve and the connector plug are provided with positioning grooves.
[0009] As a preferred embodiment of this utility model, the outer surface of the double-ended connecting pipe is provided with anti-slip protrusions.
[0010] As a preferred embodiment of this utility model, the loading sheath is a steel wire transparent flexible tube, and the exhaust main tube is a transparent tube.
[0011] Compared with the prior art, the beneficial effects that this utility model can achieve are:
[0012] 1. By fixing a connecting plug at one end of the loading sheath, it is easy to insert the plug into the inside of the loading sheath. By opening a socket at one end of the connecting sleeve, it is easy for medical staff to quickly insert one end of the connecting plug into the socket and then push the plug installed at one end of the loading steel cable into the inside of the connecting sleeve. By installing an exhaust valve at one end of the exhaust pipe, it is easy for medical staff to expel the air inside the main body of the delivery sheath. By setting an elastic rubber plug at one end of the exhaust pipe, it is easy for medical staff to inject cleaning fluid into the inside of the exhaust pipe through the elastic rubber plug to clean the delivery sheath and the loading sheath.
[0013] 2. The combination of the threaded adjusting rod and the inner threaded sleeve facilitates the adjustment of the exhaust valve tightness by personnel. The combination of the T-shaped rotating rod, L-shaped groove, and locking block facilitates the quick opening and closing of the exhaust valve by personnel. The combination of the arc-shaped clamping block and the grooved clamping block ensures that when the T-shaped rotating rod is rotated and locked, the exhaust branch pipe is bent and clamped by the arc-shaped clamping block and the grooved clamping block, effectively preventing air leakage from the exhaust branch pipe. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall side cross-sectional structure of this utility model.
[0015] Figure 2 This is a cross-sectional view of the exhaust valve of this utility model.
[0016] Figure 3 This is a schematic diagram of the side structure of the exhaust valve of this utility model.
[0017] Figure 4 This is a schematic diagram of the connecting sleeve and connecting plug of this utility model.
[0018] The components include: 1. Delivery sheath body; 2. Connecting sleeve; 3. Loading sheath; 4. Exhaust main pipe; 5. T-joint sleeve; 6. Loading steel cable; 7. Double-ended connecting pipe; 8. Loading handle; 9. Conical rubber ring; 10. Connecting plug; 11. Insertion hole; 12. Hemostatic ring; 13. Filter element exhaust head; 14. Threaded adjusting rod; 15. Elastic rubber plug; 16. Inner threaded sleeve; 17. Cylindrical part; 18. Exhaust branch pipe; 19. T-shaped rotating rod; 20. L-shaped groove; 21. Locking block; 22. Round hole. Detailed Implementation
[0019] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation are all within the protection scope of this utility model without creative effort.
[0020] For an example, please refer to... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this utility model provides an interventional delivery device for an occluder, including a delivery sheath body 1 and a loading steel cable 6. A connecting sleeve 2 is fixedly installed at one end of the delivery sheath body 1. An insertion hole 11 is opened on the surface of the end of the connecting sleeve 2 away from the delivery sheath body 1. A hemostatic ring 12 is fixedly installed inside the insertion hole 11. A loading sheath 3 is installed inside the insertion hole 11. A connecting plug 10 is fixedly installed at one end of the loading sheath 3. One end of the connecting plug 10 is inserted into the inside of the insertion hole 11. A double-ended connecting tube 7 is fixedly installed at the other end of the loading sheath 3. A loading handle 8 is sleeved on the surface of the other end of the double-ended connecting tube 7. A conical rubber ring 9 is fixedly installed at the other end of the loading handle 8. One end of the loading steel cable 6 passes through the conical rubber ring 9, the loading handle 8, the double-ended connecting tube 7, the loading sheath 3, and the connecting plug 10 in sequence, extending to the inside of the connecting sleeve 2. An exhaust pipe 4 is fixedly installed on one side surface of both the connecting sleeve 2 and the loading handle 8. The two exhaust pipes 4 are respectively connected to the connecting sleeve. 2. The loading handle 8 is connected. An elastic rubber plug 15 is fixedly installed at one end of the exhaust main pipe 4. An exhaust branch pipe 18 is installed on one side surface of the exhaust main pipe 4. A filter exhaust head 13 is fixedly installed at one end of the exhaust branch pipe 18. An exhaust valve is installed on the surface of the exhaust main pipe 4 near the exhaust branch pipe 18. By fixing a connecting plug 10 at one end of the loading sheath 3, it is easy to insert the plug into the inside of the loading sheath 3. By opening an insertion hole 11 at one end of the connecting sleeve 2, it is easy for medical staff to quickly insert one end of the connecting plug 10 into the insertion hole 11 and push the plug installed at one end of the loading steel cable 6 into the inside of the connecting sleeve 2. By installing an exhaust valve at one end of the exhaust main pipe 4, it is easy for medical staff to expel the air inside the delivery sheath body 1. By setting an elastic rubber plug 15 at one end of the exhaust main pipe 4, it is easy for medical staff to inject cleaning fluid into the inside of the exhaust main pipe 4 through the elastic rubber plug 15 to clean the delivery sheath body 1 and the loading sheath 3.
[0021] like Figure 2 , Figure 3As shown, the exhaust valve mounted on one end of the exhaust main pipe 4 consists of a three-way sleeve 5, a threaded adjusting rod 14, an inner threaded sleeve 16, a cylinder 17, and a T-shaped rotating rod 19. The three-way sleeve 5 has symmetrically arranged circular holes 22 on both sides. The inner threaded sleeve 16 and the cylinder 17 are fixedly installed on the outer walls of the three-way sleeve 5 near the circular holes 22, respectively. The threaded adjusting rod 14 is installed inside the inner threaded sleeve 16. The cylinder 17 has a through hole on its surface, and an L-shaped groove 20 is formed on the inner wall of the through hole. The T-shaped rotating rod 19 is installed inside the L-shaped groove 20. A locking block 21 is fixedly installed on the outer surface of the center of the T-shaped rotating rod 19, and the locking block 21 is located inside the L-shaped groove 20. The combination of the threaded adjusting rod 14 and the inner threaded sleeve 16 facilitates adjustment of the exhaust valve's tightness. The combination of the T-shaped rotating rod 19, the L-shaped groove 20, and the locking block 21 facilitates quick opening and closing of the exhaust valve.
[0022] like Figure 2 As shown, an arc-shaped clamping block is fixedly installed on one end of the threaded adjusting rod 14, and a grooved clamping block is fixedly installed on one end of the T-shaped rotating rod 19. The exhaust branch pipe 18 is located between the arc-shaped clamping block and the grooved clamping block. Through the matching arrangement of the arc-shaped clamping block and the grooved clamping block, when the T-shaped rotating rod 19 is rotated and locked, the exhaust branch pipe 18 is bent and clamped by the arc-shaped clamping block and the grooved clamping block, which effectively prevents the exhaust branch pipe 18 from leaking.
[0023] like Figure 1 As shown, anti-slip grooves are evenly provided on the outer surface of the connector 10, and positioning grooves are provided on the surfaces of both the connector sleeve 2 and the connector 10. By providing positioning grooves on the surfaces of the connector sleeve 2 and the connector 10, it is easy for personnel to quickly identify and install the sheath 3.
[0024] like Figure 1 As shown, the outer surface of the double-ended connecting pipe 7 is provided with anti-slip protrusions; by providing anti-slip protrusions on the outer surface of the double-ended connecting pipe 7, it is convenient for personnel to connect the loading sheath 3 to the loading handle 8 through one end of the double-ended connecting pipe 7.
[0025] like Figure 1 As shown, the loading sheath 3 is a transparent steel wire hose, and the exhaust pipe 4 is a transparent pipe. By setting the loading sheath 3 as a transparent steel wire hose, it is convenient for personnel to see the situation of the occluder being installed inside the loading sheath 3. By setting the exhaust pipe 4 as a transparent pipe, it is convenient for personnel to observe the blood flowing into the exhaust pipe 4 and observe the exhaust situation of the delivery sheath body 1.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A plugging device delivery device, comprising a delivery sheath body (1) and a loading steel cable (6), characterized in that: A connecting sleeve (2) is fixedly provided at one end of the main body (1) of the delivery sheath. An insertion hole (11) is opened on the surface of the end of the connecting sleeve (2) away from the main body (1). A hemostatic ring (12) is fixedly provided inside the insertion hole (11). A loading sheath (3) is installed inside the insertion hole (11). A connecting plug (10) is fixedly provided at one end of the loading sheath (3). One end of the connecting plug (10) is inserted into the inside of the insertion hole (11). A double-ended connecting tube (7) is fixedly provided at the other end of the loading sheath (3). A loading handle (8) is sleeved on the surface of the other end of the double-ended connecting tube (7). A conical rubber ring (9) is fixedly provided at the other end of the loading handle (8). The loading steel cable ( 6) One end extends through a conical rubber ring (9), a loading handle (8), a double-ended connecting pipe (7), a loading sheath (3), and a connecting plug (10) to the inside of the connecting sleeve (2). The connecting sleeve (2) and the loading handle (8) are each fixedly provided with an exhaust pipe (4). The two exhaust pipes (4) are respectively connected to the connecting sleeve (2) and the loading handle (8). One end of the exhaust pipe (4) is fixedly provided with an elastic rubber plug (15). One side of the exhaust pipe (4) is provided with an exhaust branch pipe (18). One end of the exhaust branch pipe (18) is fixedly provided with a filter exhaust head (13). The exhaust valve is installed on the surface of the exhaust pipe (4) near the exhaust branch pipe (18).
2. The plugging device delivery device according to claim 1, characterized in that: The exhaust valve installed on one end of the exhaust pipe (4) consists of a three-way sleeve (5), a threaded adjusting rod (14), an inner threaded sleeve (16), a cylinder (17), and a T-shaped rotating rod (19). The three-way sleeve (5) has symmetrically opened round holes (22) on both sides. The inner threaded sleeve (16) and the cylinder (17) are respectively fixedly installed on the outer walls of the three-way sleeve (5) near the round holes (22). The inner threaded sleeve (16) has a threaded adjusting rod (14) installed inside. The cylinder (17) has a through hole on its surface. The inner wall of the through hole has an L-shaped groove (20). The T-shaped rotating rod (19) is installed inside the L-shaped groove (20). A locking block (21) is fixedly installed on the outer surface of the center of the T-shaped rotating rod (19). The locking block (21) is located inside the L-shaped groove (20).
3. The plugging device delivery device according to claim 2, characterized in that: The threaded adjusting rod (14) has an arc-shaped clamping block fixedly installed on one end surface, the T-shaped rotating rod (19) has a grooved clamping block fixedly installed on one end, and the exhaust branch pipe (18) is located between the arc-shaped clamping block and the grooved clamping block.
4. The plugging device delivery device according to claim 1, characterized in that: The outer surface of the connector (10) is uniformly provided with anti-slip grooves, and the surfaces of the connector sleeve (2) and the connector (10) are provided with positioning grooves.
5. The plugging device delivery device according to claim 1, characterized in that: The outer surface of the double-ended connecting pipe (7) is provided with anti-slip protrusions.
6. The plugging device delivery device according to claim 1, characterized in that: The loading sheath (3) is a steel wire transparent hose, and the exhaust main pipe (4) is a transparent pipe.